LM2731

采用 SOT-23 封装的 0.6/1.6 MHz 升压转换器，具有 22V 内部 FET 开关

The switching regulators are current-mode boost converters operating at fixed frequencies of 1.6 MHz X option and 600 kHz Y option.

The use of SOT-23 package, made possible by the minimal power loss of the internal 1.8-A switch, and use of small inductors and capacitors result in the highest power density of the industry. The 22-V internal switch makes these solutions perfect for boosting to voltages up to 20 V.

These parts have a logic-level shutdown pin that can reduce quiescent current and extend battery life.

Protection is provided through cycle-by-cycle current limiting and thermal shutdown. Internal compensation simplifies design and reduces component count.

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22-V DMOS FET Switch

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1.6-MHz X Option, 0.6-MHz Y Option

Switching Frequency

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Low RDSON DMOS FET

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Switch Current Up to 1.8 A

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Wide Input Voltage Range 2.7 V to 14 V

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Low Shutdown Current <1 µA

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5-Lead SOT-23 Package

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Uses Tiny Capacitors and Inductors

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Cycle-by-Cycle Current Limiting

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Internally Compensated